If you refer to those JS codes that kids nowadays paste on their
blogs so that visitors can't save the background or whatever image
there, just Google "right-click disabler" and sift through the
results. But frankly, the visitors are also one Google search away
from downloading those images as well.
Otherwise, if you are looking for an application-based solution,
here's one for IE. (Again, I found it through Google.)
You can't specifically disable a single menu item, (at least as far
as I'm aware -- there may be some undocumented way around it), but
you can make the menu go away completely. This might be useful for
shared machines in a "public" environment, where changes made
through the menu, (such as setting the computer's background from a
web image), could be confusing to other users.
Navigate to:
HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Internet
Explorer\Restrictions
Set a DWORD value:
NoBrowserContextMenu = 1
You can also do this just for specific users if you wish. In this
case, make the change under HKEY_CURRENT_USER.
- jfitz.com